• Efficacy of mulching and farm yard manure on okra (Abelmoschus esculentus L.) productivity during spring-summer season at Nawalparasi

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  • 29/02/2016

This MSc thesis study was conducted by Khem Prasad Oli, student at the Tribhuvan University, as part of the SAF-BIN project in Nepal in 2013.

Chemical fertilizers and pesticides are often applied to counteract yield loss and to increase plant growth. These materials are, however, costly and have hazardous effects on human health and the environment. Mulching and farm yard manure (FYM), on the contrary, are less expensive and improve the physical and biological properties of the soil, without dangerous side-effects.The objective of the study was to evaluate the effect of mulching and different levels of FYM on okra production in response to drought condition. The study took place in Pithauli VDC1, Nawalparasi, Nepal from April-July 2013. The experiment was conducted in a two factorial randomized complete block design. Factor A: no mulching and mulching with rice straw (6 mg/ha); factor B, different levels of FYM: 0, 10, 20, 30 and 40 mg/ha. The okra variety Arka Anamika was used as plant material. Growth and yield parameters were recorded at 30, 45, 60, 70 days after sowing and at the final harvest. Additionally, a focus group discussion was conducted to obtain information on farmers ‘adaptation strategies. Mulching and FYM significantly affected the productivity. 40 mg/ha FYM achieved highest values compared to other levels, e.g. for plant height (143.90 cm; 97.42-133.20 cm), fruits per plant (19.63; 12.82-16.30) and yield (17.08 mg/ha; 10.33-13.15 mg/ha). Similarly, mulching achieved higher values compared to non-mulching, e.g. for plant height (133.95 cm; 106.90 cm), fruits per plant (18.63; 13.06) and yield (15.42 mg/ha; 10.44 mg/ha). Furthermore mulching and application of 40 mg/ha FYM achieved highest soil moisture (41.62%). Additionally highest net return (Rs. 160,029.00 /ha) and highest benefit-cost ratio (1.64) was obtained by the combination of these treatments. Farmers were aware of the climate change effects and all farmers preferred vegetable production over cereal crop. Some farmers also applied climate smart adaption strategies and were supported by the government of Nepal and Caritas Nepal, e.g. through vegetable production trainings. For commercial okra cultivation, the highest net returns can be obtained from the combined application of mulching and 40 mg/ha FYM.


1Village development committee